For sun lovers, Porto, Portugal, is a prime destination, particularly during the summer months from May to October. In this season, Porto enjoys temperatures of 18-25°C (64-77°F), peaking in July and August. The dry and moderate climate ensures that even the warmest days are comfortable, free from oppressive humidity.

The average temperature is steady at 19°C (66°F), the same as August. The high average stays well over 24°C on the good days, and the expected low hangs around 14°C, particularly during the nights. The days keep up to 7 hours of sunshine which is a dip but the chances of sunny days stay well at 39% on average.

The average temperature is a mild 12°C (54°F), with consistently cool nights at lows of 8°C, and pleasant highs around 16°C. These somewhat radical values are subject to the caprices of an equinox sun.